Gluing mechanism for paper boxes.



No'. 732,225. PATENTED JUNE 3o, 1903.

" W. s. SCALES.

GLUING MECHANISM EGE PAPER BOXES.

APPLICATION IILED EEE. 2. 190s.

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No. 732,225. PATENTED JUNE 30, 1903. W. S. SCALES.

GLUING MECHANISM FOB. PAPER BOXES.

APPLIOATION FILED PEB. 2, 190s.

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PATENTED JUNE so, 1903.

v w. s. SCALES. GLUING MEGEANISM'EOE PAPER BOXES.

APYLIOATION FILED FEB. 2| 1903.

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No.732v,225. Y l Patented'l'une 30,1903. UNITED ,STATES PATENT OFFICE.

WILLIAM S. SCALES, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO I-IENRIETTA W.DOBLE, OF QUINCY, MASSACHUSETTS.

GLUING MEoHA'NisMi-OR PAPER BOXES.

SPECIFICATION forming part of Letters Patent N o. 782,225, dated June30, 1903. Application led February 2, 1903. Serial Noy 141,406. (Nomodel.)

To all whom, t may concern; side elevation of the glue-roll mechanism,Be it known that I, WILLIAM S. SCALES, a showing the cam for givingstraight-line m-v citizen of the United States', and a resident of` tionto the glue-roll latched in its lowermost Boston, in the county ofSuffolk and Stateof position and causing the glue-roll to clear the 55Massachusetts, have invented certain new under surface of the block.

and useful Improvements in Gluing Mechan- In the machine shown inthedrawings there isms for Paper Boxes and the Like, of which isrepresented a rotary head or spider mountthe following is aspecification. ed on a rotary shaft l and having a series of Theinvention relates to an improvement in radiating arms 2, each of whichcarries pend- 6o 1o gluing mechanism for cartons or paper boxes, enttherefrom a carton holdingr or forming bags, and the like. y block 6, onwhich the cartons are held while One feature of the invention relates tothe the flaps are being glued. The head is given means for securing arectilinear movement of an intermittent rotary movement by any suittheglue-roll across the part which is to be able mechanism, turning at eachperiod of 65 x5 glued. movement through an arc sufficient to bringAnother feature of the invention relates to the blocks 6 in successiverotation into posimeans by which if the machine goes through tion forthe gluing action. The mechanism its movements without any carton inposition shown in the drawings for giving this interon the holder orforming-block the glue-roll mittent motion to the head is a form of Gen-7o zo will be prevented from coming in contact with eva stopmotion.

the forming-block. n `Mounted on shaft 1 is a slotted disk 8.

The invention will now be fully described Mounted on rotary shaft 74 isa disk v'7, having by reference to the accompanying drawings, a spur 9,which carries a pin 10, adapted to and the novel features thereof willbe partie"- engage at each rotation with one of the slots 3 75 ularlypointed out in the claims at the close in disk 8 and turn the head, withthe formof the specication. Y ing-blocks 6, through a certain arc.

The drawings represent the invention as rMounted on shaft 4, which isjournaled in applied to amachine for setting up cartons the forked armsof lever 105, is a rotary gluehaving an intermittently-rotating headwith Yroll 63, which has a reciprooatory movement 8o 3o spider-arms,from which are suspended form-, beneath the lower end of thecarton-block 6 ing-blocks on which the cartons are held dur- .at certaintimes in the operation of the maing the several operations. chine toapply. glue to the carton-naps, pro- In the drawings, Figure 1 is a planvie videdacarton is on the block, and after each showing the spider andGeneva stop-motion Vreciprocation it engages with a glue-feed roll 85and mechanism for actuating the glue-roll 123, which is supplied withglue from a glueand latch, showing the throw-out mechanism pan 124. forthe latch in the position assumed afterl The mechanism for actuating theglue-roll one of the blocks has passed the'ngers 232 is as follows:Lever 105 is fulorumed on a and 238 with a carton thereon, the latchbeing pivot 5, projecting from an arm 211, pivoted 9o 4o thrown out.Fig. 2 is a plan View similar to at 212 to the fixed support 213.Pivoted at` Fig. 1, showing the throw-out mechanism for 21S to the fixedsupport 213 is a bellcrank the latch in the position in which it is leftlever 219, one arm of which is connected by after the passage of theblock without a carlink 220with `the lever 105 vandv the other ton, thelatch being thrown in. Fig. 3 is a arm of which is connected by rod 221with 95 side elevation looking toward the lleft in Fig. one end oflever222, fulorumed at`223. Y The 1, showing the cam for actuating theglue-roll other endl of lever 222 has a cam-roll 224, and cam for givingthe straight-line motion which engages with a cam 225 on shaft 27, tothe glue-roll, said cam being in its upward and through the connectionsdescribed lever position with the latch thrown out and the 219 isactuated to oscillate the lever and loo 5o glue-roll engaged with theunder surface of reciprocate the glue-roll 63. It is obvious thecarton-Hap. Fig. 11 is an enlarged detail that if the pivot 5 were fixedthe glue-roll 63 would move onlyin the are of a circle. Arm

' 211, however, to which lever 105 is pivoted,

is itself pivoted at both ends, and the pivot 5 forms a movable fnlcrumfor lever 105. Carried on the lower end of lever 105 is a roller 214,which moves in a cam-path 215 in the cam 216. The cam-path is so formedthat when the cam 216 is in the position shown in Fig. 3 and thelever105 is actuated by the rotation of the cam 225 the tendency of theupper end of the lever and of the glue-roll to describe an arc of acircle will be compensated bythe movement of the lower end during a partof its stroke, and the resultant motion will be in a straightline duringthat portion of its movement where the glue-roll passes under the block6 and its attached carton 260.

It is not important to have the glueroll move in a straight line exceptwhere it passes in engagement with the carton-fiap on the block. It israther desirable that it should move out of its straight-line path atythe end of its stroke, so as to be out of the path of the carton andblock during the rotation of the spider-head. The dotted line 217 217shows the path described b v the center of the glue-roll.

The parts are so adjusted that when the cam 216 is in the position shownin Fig. 3 the rectilinear path of the glue-roll 63 when it passesbeneath the carton-block 6 will be at the right height for the glue-rollto contact with the carton-flaps and apply the glue. It is desirable,however, to provide means by which if the block 6 has no carton upon itthe glue-roll shall not rub across the lower end of the block, becausesuch engagement will leave a film of glue on the block, which will beobjectionable and will cause the carton to stick to the block the nexttime around when a carton is placed upon it. In order to provide forthis, the cam 216 is made movable, and mechanisms are provided by whichthe said cam will be automatically locked in the position shown in Fig.3 if a carton is on the block and by which if a carton is not on theblock the said cam will be lowered and locked in its lower positionduring the reciprocation of the glue-roll, so that the glue-roll willnot engage with the block. The mechanisms for accomplishing this are asfollows: One end of cam 216 is pivoted at 248 to the fixed arm 213. Thecam maybe turned upand down on itspivot. Two stop-pins 249 and 250 limitthe up-anddown movement. The unpivoted end of the cam 216 rests on afinger 251, pivoted at 252 to the fixed support 213 and is normally heldby a spring 253 in a position to retain the cam 216 in its uppermostposition,as shown in Fig. 3. A shoulder 254` prevents the spring fromthrowing the finger 251 too far over. Rising from the table 31 is acolumn 226, having a long bearing 227, which forms a journal for atubular shaft 228. Fast to or integral with the tubular shaft 22S is afinger 232, which projects into the path of the carton-block 6 and isengaged thereby each time the spider makes a turn through the arc ofmovement to bring the block and carton into position for gluing. (SeeFig. 1.) Rising from the table 31 is another column 233, having a longbearing 234, which forms a journal fora tubular shaft 235. Said shaft issupported in a manner similar to shaft 228. Fast to or integral withtubular shaft 235 is a finger 238, which intersects the cylindricalplane in which the carton-block 6 moves. It is, however, below the blockfar enough so that it does not intercept the block, but is high enoughto he engaged by the depending flap 60 of the carton 260 if a carton ison the block. Fast to or integral with the tubular shaft 228 is an arm239, to the other end of which is pivoted one end of a connecting-rod240. The other end of said connecting-rod is pivoted to one end of anarm 241, which is fast to or integral with tubular shaft 235. Fast to orintegral with tubular shaft 235 is an arm. 242, to which is pivoted oneend of a connecting-rod 243, the other end of said connectingrod beingpivoted to a link 244, which is pivoted to a hook-lever 245, having ahook-catch 246. Said `levor 245 is pivoted at 247 to the fixed support213. Projecting from bellcrank lever 219 is a finger 255, which when thesaid lever is rocked by the cam 225 through the connecting mechanism ina direction to move the glue-roll 63 toward the glue-feed roll 123, asshown in Fig. 4, will engage finger 251, on which rests lever 216, andwill turn it down out of engagement with said cam, compressing spring253. A cam finger or boss 256, also projecting from bell-crank 219, willengage with a stud 257, which projects from the side of cam 216, andcause the cam 216 to be turned down on its pivot. This movement willoccur while the spider-head is movingthrough its arc of movement. Whenthe spider-head moves,the block 6 engages during its course the finger232 and partially turns the tubular shaft 228 on its journal, andthrough the connections already described it also turns shaft 235,thereby moving connecting-rod 243 in a direction to cause the hook-latch246 to hook over onto the upper side ofa projecting shoulder 258 on therear end of cam 216 and hold the cam in its lowermost position, restingon the stop 250, as shown in Fig. 4, and unless the latch 246 is in someway tripped before the glue-roll passes back under the carton-block thelever 105 will not reach high enough to cause the glue-roll to come incontact with the block. This condition is shown by the dotted lines inFig. 4.

Mechanism is provided by which the latch will be tripped only when acarton i's on the block. The outside corner of the downwardly-projectingflaps at the lower end of the advance side of the carton-block willengage the finger 238 after the finger 232 has caused the latch toengage the cam 216 and will canse llO tubular shaft 235 to turn in thereverse direction to its formerturning and through the connectingmechanism will release the latch 246 from the cam 216. It will alsothrough the connecting mechanism turn tubular shaft 22S back again andbring finger 232 into position to be engaged by the next following block6 at the neXt movement of the spider-head.

When the lever 105 turns so as to carry the glue-roll from thefeed-roll, as shown in Fig. 4, back under the carton-block 6, thebellcrank 219 will be turned back and the linger 256 will be withdrawnfrom the stud 257, and the finger 255 will be Withdrawn from the pivotedcam-supporting 1inger251,and the spring 253 will turn saidsupporting-finger 251 upon its pivotinto engagement with the under sideof cam 216. If the latch 258 has been released by a carton on the4block, the said finger 251 will lift the cam 216 up into its normalposition, so that the fulcrum oflever 105 will be raised high enough forthe glueroll to pass in contact'with .the carton-flap.

. If a carton is .not on the block so as to release the latch 246, thespring 253 will not be able to turn back the finger 251 its fulldistance and the cam 216 will remain thus latched until a block doescome around with a carton thereon and engage the finger 238 to trip thelatch.

Mechanism for folding the flaps is not shown herein, as thatdoes notform a part of the present application. They may be folded in anysuitable way either automatically or by hand.

Shaft 27, on which the glue-roll-actuating cam 225 is mounted, isconnected by bevelgear 144 With/bevel-gear 141 on shaft 74,which carriesthe driving spur-disk '7, so as to produce harmony of movement. (SeeFig. 3.)

What I claim isl. In combination With a carton-forming block, andmechanism for moving said block intermittently, a glue-roll, mechanismfor .recipr'ocating said glue-roll beneath-the said block,when the blockis at rest, and mechanism controlled by a carton on the block to causethe glue-roll to pass in contact With a fiap of said carton,substantially as described.

2. In combination with a carton-forming block and mechanism for movingsaid block intermittently, a glue-roll, mechanism for reciprocating saidglue-roll beneath said block when the block is at rest, mechanismcontrolled by a carton on the block to cause the glue-roll during itsmovement to engage the surface of a folded flap of said carton, andmechanism which holds the glue-roll out of contact with the carton-blockif there is no carton on the block, substantially as described.

3. In combination with a carton-forming block and mechanism for movingsaid block intermittently, a glue-roll, mechanism for reciprocating saidglue-roll beneath said block when the block is in a position of rest,mechansm actuated by the moving block before it arrives at thegluing-point to so adjust the glue-roll-actuating mechanism that unlessreadjusted the glue-roll Will not make contact with said block, andmechanism actuated by a carton on the moving block to readjnst theglue-roll-actuatiug mechanism so that the gl ue-roll during itsreciprocation Will engage with a folded carton-Hap, substantially asdescribed.

4. In combination With a carton-forming block, and mechanism for movingsaid block intermittent-ly, a glue-roll mounted on a pivoted lever, amovable fulcrum for said lever,

mechanism for oscillating said lever on its fulcrum, mechanism formoving said fulcrum during the oscillation of the said lever in suchmanner as to cause the glue-roll during a part of its course to move ina rectilinear path, and mechanism actuated by a carton on the movingblock to cause the glue-roll toy move in a different path from that inwhich it will move When' there is no carton on the block, substantiallyas described.

5. In combination with a glue-roll mountedv on a pivoted lever, amova-ble pivot for said lever intermediate its ends, mechanism foroscillating said lever, a cam which controls the direction of movementof said pivot and causes the glue-roll to move in a rectilinear pathduring a part of its course, a carton -holding block, mechanism formoving said block into a position over the path of movement of theglue-roll, mechanism actuatedby the moving block to cause said cam to bemoved into such position as to cause the glue-roll to move in a pathwhichwill not carry it into engagement With the cartonblock unless theposition of the cam is again changed, and mechanism actuated b v acarton on the moving block to restore said cam to a position where itwill cause the glue-roll to move in a path which will carry it intoengagement With a folded flap of the carton, substantially as described.

IOO

IIO

6. In combination With a glue-roll mountholds the cam in a positionwhich would cause the glue-roll to move across the'folded flap of acarton on the block, mechanism actuated by the moving of the block totrip said support, mechanism which causes the cam to change its positionand a latch which locks the cam in its changed position to change thepath of the glue-roll, mechanism actuated by a carton on the movingblock to trip said latch,and mechanism which returns said camsupport andcam into position for causing the glue-roll to engage with thecarton-flap, substantially as described.

7. In combination, an oscillating lever, a cam with which one end ofsaid lever engages, a rocking bell-crank lever, a link connectionbetween said two levers, mechanism for rocking said bell-crank lever,and oscillating said first-described lever, the form of the cam beingsuch as to cause the free end of the said oscillating lever to moveduring a part of its course in a rectilinear path, substantially asdescribed.

8. In combination with a rotary head, a series of carton-holding blockscarried thereby, mechanism for rotating said head, a gluing devicemounted on an oscillating lever, mechanism for oscillating the lever andmoving said gluing device beneath one of said blocks, a cam which isengaged by said lever and causes the fulcrum to shift during theoscillation in such manner as to cause the gluing device to move in arectilinear path under said block, mechanism which moves said cam into aposition which if not disturbed will cause the gluing device to move ina path which will not bring it into contact with the block, aswivel-shaft having a finger which projects into the path of said blocksand when engaged by a block turns said swivel-shaft, a secondswivel-shaft having a crank-and-link connection with said firstswivel-shaft and having a iinger thereon which when the irstdescribedswivel-shaft is turned by the block turns said second finger into thepath of a carton-Hap when there is a carton on said block, mechanismactuated by the cam-actuating mechanism to move said cam and hold it ina new position, a latch actuated by the turning of said shafts to holdsaid cam in its new position, the engagement of said cartonap with thelinger on said second swivelshaft causing it to turn in the reversedirection and release the latch, and mechanism which moves the said camback into position where the gluing device will move in contact with thecarton 1'iap, substantially as described.

9. In combination, an oscillating lever, a movable fulcrum for saidlever intermediate its ends, a gluing device mounted on one end of saidlever, a pivoted cam which engages with the other end of said lever andwhich when the lever oscillates causes the gluing device to move in acurved path at each end of its course and in a straight path in theintermediate part of its course, a rocking lever having a linkconnection with said oscillat ing lever, driving mechanism connectedwith said rocking lever which actnates thereby the said oscillatinglever, a pivoted lever which normally engages said pivoted cam and holdsit in a certain position, a finger on said rocking lever which when thesaid lever rocks in one direction disengages. said pivoted support andturns it back, a spring which engages said support and is compressed bythe turning back of said support, a second linger on said rocking leverwhich turns said cam on its pivot and causes the gluing device to movein a. dierent path, said spring turning the said pivoted support againinto engagement with said pivoted cam and moving the cam back to itsnormal position when the rocking lever turns in a'direction to retractits fingers, substantially as described.

In testimony whereof I have aflixed my signature in presence of twowitnesses.

WILLIAM S. SCALES. Vitnesses:

WILLIAM A. COPELAND, ROBERT WALLACE.

